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Studentka2010 [4]
3 years ago
15

How do you know when a chemical equation is balanced?

Chemistry
1 answer:
kirza4 [7]3 years ago
6 0

Both sides of the equation would be equal.

Hope This Helps You!

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Using the model,what is the mass of the atom pictured? <br> A)3amu<br> B)5amu<br> C)7amu<br> D)9amu
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with 20 protons (p=20) and 22 neutrons (n=22)? 47 ... Listed below are the charges and masses of four ... a) +2,2 amu c ) +1, 1 amu least b) ... pudding” Model.

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Name one way in which oxygen from the air reacts slowly with another materal
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How many grams of oxygen gas are produced when this sample is heated?
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4 years ago
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Calculate the number of Cl atoms that are in 1.1 x 10^-21 moles of Cl atoms.
Margarita [4]

According to Avogadro's number there are 62.53 atoms of chlorine in 1.1x 10^-21 moles of Cl atoms.

<h3>What is Avogadro's number?</h3>

Avogadro's number is defined as a proportionality factor which relates number of constituent particles with the amount of substance which is present in the sample.

According to the definitions, Avogadro's number depend on determined value of mass of one atom of those elements.It bridges the gap between macroscopic and microscopic world by relating amount of substance with number of particles.

Number of atoms can be calculated using Avogadro's number as follows: mass/molar mass×Avogadro's number or number of moles×Avogadro's number.

ON substitution in above formula number of atoms=1.1×10²¹×6.023×10²³=62.53 atoms

Thus, there are 62.53 chlorine  atoms in 1.1x 10^-21 moles of Cl atoms.

Learn more about Avogadro's number,here:

brainly.com/question/11907018

#SPJ1

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1 year ago
How do Nitrate levels vary between tap water bottled water distilled water and outdoor water?
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  • The key difference between tap water and distilled water is that tap water may contain impurities whereas distilled water does not contain impurities. Water covers more than 70% of the earth' surface. Thus, there is less than 1% of water left for direct human use.

<h2>HOPE IT HELPS!</h2>

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